Malik Obama, who was born in Kenya and came to the United States as a young boy, is reportedly registered to vote in Maryland, according to the New York Post.

He told the paper in July that he supports Trump because he believes his brother and then-Secretary of State Hillary Clinton made a mistake by intervening in Libya in 2011.

"I still feel that getting rid of [Libyan dictator Muammar] Gaddafi didn't make things any better in Libya," he said. "My brother and the secretary of state disappointed me in that regard."

Trump is also bringing another prominent figure in the Libya intervention: Patricia Smith, the mother of Sean Smith, a U.S. diplomat who was killed in the attack on Benghazi on Sept. 11, 2012.

CNN reported that Smith confirmed she will be at the final debate in Las Vegas. "I would like to have Hillary tell me what happened," she told CNN. "I know she murdered him."

This isn't the first time Trump has tried to rattle Clinton by placing controversial guests in the audience at a debate. During the second debate on Oct. 9 in St. Louis, Trump invited several women who have accused Clinton's husband, former President Bill Clinton, of sexual assault. He also invited Kathy Shelton, whose alleged rapist Hillary Clinton represented in court 40 years ago.

Clinton is inviting two high-profile guests of her own to the third and final debate. Hewlett-Packard CEO Meg Whitman, a longtime Republican who is now backing the Democratic nominee, and Mark Cuban, the billionaire owner of the Dallas Mavericks, will attend, according to CNN.

Cuban has been very outspoken in his dislike for Trump.

Trump is not alone in his lack of self awareness. There is a shocking precedent that mirrors his campaign! https://t.co/A7UcbEXpyt

Cant wait to give a big hug to my bestie @realDonaldTrump at the debate tomorrow night. I know you miss me !

On Wednesday afternoon, NBC's Katy Tur reported that Trump is bringing several other guests to the debate, including the fiance of U.S. Ambassador Chris Stevens, who was killed in Benghazi in 2012 and Marcus Luttrell, retired Navy Seal and co-author of Lone Survivor.